489378266719 has 2 divisors, whose sum is σ = 489378266720. Its totient is φ = 489378266718.

The previous prime is 489378266693. The next prime is 489378266737. The reversal of 489378266719 is 917662873984.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 489378266719 - 2¹⁷ = 489378135647 is a prime.

It is a super-2 number, since 2×489378266719² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (489378266749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 244689133359 + 244689133360.

It is an arithmetic number, because the mean of its divisors is an integer number (244689133360).

Almost surely, 2^489378266719 is an apocalyptic number.

489378266719 is a deficient number, since it is larger than the sum of its proper divisors (1).

489378266719 is an equidigital number, since it uses as much as digits as its factorization.

489378266719 is an evil number, because the sum of its binary digits is even.

The product of its digits is 219469824, while the sum is 70.

The spelling of 489378266719 in words is "four hundred eighty-nine billion, three hundred seventy-eight million, two hundred sixty-six thousand, seven hundred nineteen".